edid-decode "/sys/class/drm/card0-VGA-1/edid": EDID (hex): 00ffffffffffff00047254addb025054 2d0f010368221b782e5055a25c489a24 115054bfef008180714f010101010101 010101010101302a009851002a403070 1300520e1100001e000000fd00384c1e 520e000a202020202020000000fc0041 63657220414c313731370a20000000ff 0045544c35343039303032202020002c Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 68 22 1b 78 2e chroma info: 50 55 a2 5c 48 9a 24 11 50 54 established: bf ef 00 standard: 81 80 71 4f 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: 30 2a 00 98 51 00 2a 40 30 70 13 00 52 0e 11 00 00 1e descriptor 2: 00 00 00 fd 00 38 4c 1e 52 0e 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 fc 00 41 63 65 72 20 41 4c 31 37 31 37 0a 20 descriptor 4: 00 00 00 ff 00 45 54 4c 35 34 30 39 30 30 32 20 20 20 extensions: 00 checksum: 2c EDID version: 1.3 Manufacturer: ACR Model ad54 Serial Number ... Analog display, Input voltage level: 0.7/0.7 V Sync: Separate Maximum image size: 34 cm x 27 cm Gamma: 2.20 DPMS levels: Off RGB color display Default (sRGB) color space is primary color space First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6337, 0.3603 Green: 0.2812, 0.6015 Blue: 0.1416, 0.0673 White: 0.3134, 0.3291 Established timings supported: 720x400@70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz 640x480@67Hz 4:3 HorFreq: 35000 Hz Clock: 30.240 MHz 640x480@72Hz 4:3 HorFreq: 37900 Hz Clock: 31.500 MHz 640x480@75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 MHz 800x600@56Hz 4:3 HorFreq: 35200 Hz Clock: 36.000 MHz 800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz 800x600@72Hz 4:3 HorFreq: 48100 Hz Clock: 50.000 MHz 800x600@75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz 832x624@75Hz 4:3 HorFreq: 49726 Hz Clock: 57.284 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz 1024x768@70Hz 4:3 HorFreq: 56500 Hz Clock: 75.000 MHz 1024x768@75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz 1280x1024@75Hz 5:4 HorFreq: 80000 Hz Clock: 135.000 MHz Standard timings supported: 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz 1152x864@75Hz 4:3 HorFreq: 67500 Hz Clock: 108.000 MHz Detailed mode: Clock 108.000 MHz, 338 mm x 270 mm 1280 1328 1440 1688 hborder 0 1024 1025 1028 1066 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 63981 Hz Monitor ranges (GTF): 56-76Hz V, 30-82kHz H, max dotclock 140MHz Monitor name: Acer AL1717 Serial number: ... Checksum: 0x2c (valid) EDID block does NOT conform to EDID 1.3! sRGB is signaled, but the chromaticities do not match EDID block does not conform at all! Bad year of manufacture